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https://www.readbyqxmd.com/read/28650799/learning-the-personalized-intransitive-preferences-of-images
#1
Jun Chen, Chaokun Wang, Jianmin Wang, Xiang Ying, Xuecheng Wang
Most of the previous studies on the user preferences assume that there is a personal transitive preference ranking of the consumable media like images. For example, the transitivity of preferences is one of the most important assumptions in the recommender system research. However, the intransitive relations have also been widely observed, such as the win/loss relations in online video games, in sport matches, and even in rock-paper-scissors games. It is also found that different subjects demonstrate the personalized intransitive preferences in the pairwise comparisons between the applicants for college admission...
September 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28650786/alveolar-fracture-caused-by-tooth-extraction-at-home
#2
Fabrício Kitazono de Carvalho, Thaís Aparecida Xavier, Nicole Gonçalves Lima, Alexandra Mussolino de Queiroz, Marcilene Coelho Vinhorte, Paulo Nelson-Filho
Injuries to the teeth and surrounding structures are relatively common. Although traumatic injuries caused by falls or activities related to sports are widely discussed, the same cannot be said regarding accidents arising from non-professional extraction of primary teeth. The present study reports a 6-year-old male child who underwent mandibular alveolar bone fracture during non-professional extraction of his central lower left incisor at home, performed by his 30-year-old aunt. The root of the tooth was with an irregular physiological resorption, which acted as a lever component for the mechanical force applied, leading to bone fracture...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28649793/characteristics-of-acute-groin-injuries-in-the-hip-flexor-muscles-a-detailed-mri-study-in-athletes
#3
Andreas Serner, Adam Weir, Johannes L Tol, Kristian Thorborg, Frank Roemer, Ali Guermazi, Eduardo Yamashiro, Per Hölmich
Hip flexor injuries account for one third of acute groin injuries; however, little is known about specific injury characteristics. The aims of this study was to describe acute hip flexor injuries using magnetic resonance imaging (MRI) in athletes with acute groin pain, and to compare specific muscle injuries with reported injury situations. Male athletes with acute groin pain were prospectively and consecutively included during 3 sports seasons. MRI was performed within 7 days of injury using a standardized protocol and a reliable assessment approach...
June 26, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28648554/the-isokinetic-rotator-cuff-strength-ratios-in-overhead-athletes-assessment-and-exercise-effect
#4
REVIEW
Kelly Berckmans, Annelies G Maenhout, Lien Matthijs, Louise Pieters, Birgit Castelein, Ann M Cools
OBJECTIVE: Muscle strength imbalance in the shoulder region can be considered as a predisposing factor in the development of movement dysfunctions, possibly leading to overuse injuries. Repetitive overhead throwing, performed in sports, may result in muscle imbalance between the external (ER) and internal (IR) rotators. Muscle strength measured with an isokinetic device, is reported as a concentric (CON) or eccentric (ECC) force. The balance between an agonist and an antagonist is mentioned as a ratio (CON/CON or ECC/CON)...
March 11, 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28648245/great-british-medalists-response-to-the-commentaries
#5
Lew Hardy, Matthew Barlow, Lynne Evans, Tim Rees, Tim Woodman, Chelsea Warr
Hardy et al. (2017) reported the findings of a large-scale, multisource, qualitative study that examined the commonalities of, and discriminators between, a group of super-elite (SE) and a group of elite (E) athletes who were matched on gender, sport, discipline, and era. Fifteen research teams who are actively engaged in research in the domain then provided critical commentaries on the target paper. In our response to these commentaries, we briefly remind the reader of the primary findings of the original paper and then deal with the commentaries under the subheadings: Necessary and Sufficient Conditions for Elite Performance; Mediating and Moderating Variables; Methodological Issues; Omissions; and Alternative Approaches...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/28648243/a-culture-of-striving-augments-use-of-working-memory-implications-for-attention-control
#6
Tim Buszard, Rich S W Masters
A culture of striving was notable in the developmental background of many of the elite and super elite athletes in the Hardy et al. STUDY: Critically, a culture of striving was credited with a positive influence on a range of issues relevant to elite sports performance, including performance under pressure. Of the six athletes who did not reveal a culture of striving, five reported the greatest difficulty performing in high-pressure situations. We suspect that a culture of striving facilitates the development of attention control ability, which subsequently assists performance under pressure...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/28648240/eventual-sport-performance-level-what-about-the-role-of-type-of-sport-perception-of-critical-life-events-and-practice-quality
#7
Tynke Toering
The target article describes an interesting study, which provides some challenging findings regarding athletes' pathway to excellence. The suggested links between critical life events, need for success, personal characteristics, and eventual performance level make sense from a psychodynamic perspective. This commentary will discuss some critical points related to the application of the findings in talent identification and -development programs. These are (1) the possible effect of the selection of participants on the results (including the impact of dependence on others for team sport athletes and the opportunity for multiple medal attainment), (2) a lack of detail in the description of how the athletes approached the critical life events (the perception of an event may contribute more to development than the event itself), and (3) a lack of detail in the description of the practice process throughout development...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/28648237/adversity-related-experiences-are-essential-for-olympic-success-additional-evidence-and-considerations
#8
Mustafa Sarkar, David Fletcher
Drawing on Hardy et al.'s study as the target article, in this commentary, we focus on the adversity-related experiences and consequences of the Olympic and/or World champions that they sampled. With this in mind, we divide the narrative into two main sections. In the first section, we explore the association between adversity-related experiences and Olympic success, and provide additional evidence in support of the notion that adversity-related experiences are essential for success at the highest level of sport...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/28648234/in-search-of-the-golden-skill
#9
John W Krakauer
Athletes devote their lives to practicing their chosen sport so as to attain the highest level of skilled performance. A perennial question is why are some athletes better than others? Most debates on this issue reduce to genetics (natural abilities) vs differences in accumulated deliberative practice. In contrast, the target article under discussion here reports on a study that identified psychosocial factors (obsessiveness, ruthlessness) and early life experiences (trauma or loss) that distinguished those athletes at the Olympics and World Championships that medaled over those that did not...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/28648233/assessing-risk-factors-for-athletic-excellence
#10
Kielan Yarrow
Hardy et al. present a qualitative interview study to identify differences between elite and super-elite athletes, but their approach closely parallels the case-control methodology developed and discussed primarily within the epidemiological literature. The strengths and weaknesses of this approach may be less familiar to a psychological or sports-science audience. Here, I comment on this methodological choice and the implications it has for the robustness and value of the inferences that are drawn. I conclude that while Hardy et al...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/28648230/the-psychosocial-development-of-world-class-athletes-additional-considerations-for-understanding-the-whole-person-and-salience-of-adversity
#11
Daniel F Gucciardi
In the target article, Hardy and colleagues provided an incisive analysis of retrospectively reported psychosocial factors associated with the development and careers of 32 former athletes from Olympic sports. They found that Super-Elite athletes ("serial" medal winners at major international championships, i.e., World Championship or Olympic Games) differed from matched Elite performers (won medals at international competitions but not major championships) with regard to several important psychosocial factors (e...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/28648228/great-british-medalists-psychosocial-biographies-of-super-elite-and-elite-athletes-from-olympic-sports
#12
Lew Hardy, Matthew Barlow, Lynne Evans, Tim Rees, Tim Woodman, Chelsea Warr
Participants were 32 former GB athletes from Olympic sports, 16 Super-Elite athletes who had won multiple medals at major championships, and 16 matched Elite athletes who had not. In-depth interviews with the athletes, their coaches, and one of their parents explored all psychosocial aspects of their development and careers. Content analyses revealed that there were no differences between Super-Elite and Elite athletes with regard to family values, conscientiousness, or commitment to training. However, the two groups were found to be different with regard to: (1) the experience of a foundational negative life event coupled with a foundational positive sport-related event; (2) the experience of a career turning point that enhanced motivation and focus for their sport; (3) need for success; (4) obsessiveness and/or perfectionism with regard to training and performance; (5) ruthlessness and/or selfishness in the pursuit of their sporting goals; (6) dual focus on both mastery and outcome; (7) the use of counterphobic attitudes and/or total preparation to maintain higher levels of performance under pressure; and (8) the relative importance of sport over other aspects of life...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/28647923/foodborne-illness-outbreak-investigation-in-a-high-profile-sports-club
#13
Kwendy Cavanagh, Travers Johnstone, Essi Huhtinen, Zeina Najjar, Peter Lorentzos, Craig Shadbolt, John Shields, Leena Gupta
A foodborne illness outbreak involving an elite sports team was investigated by a public health unit in Sydney, Australia. An epidemiological association was established between gastrointestinal illness and the consumption of food supplied by an external caterer, with a lamb meal most strongly associated with illness. Genetically identical Salmonella isolates were identified from clinical specimens, residual food items, and an environmental swab taken from the catering premises. The training schedule and other club operations were significantly affected by this outbreak...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28644678/professional-athletes-return-to-play-and-performance-after-operative-repair-of-an-achilles-tendon-rupture
#14
David P Trofa, J Chance Miller, Eugene S Jang, Denzel R Woode, Justin K Greisberg, J Turner Vosseller
BACKGROUND: Most Achilles tendon ruptures are sports related. However, few studies have examined and compared the effect of surgical repair for complete ruptures on return to play (RTP), play time, and performance across multiple sports. PURPOSE: To examine RTP and performance among professional athletes after Achilles tendon repair and compare pre- versus postoperative functional outcomes of professional athletes from different major leagues in the United States...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28644677/young-athletes-after-anterior-cruciate-ligament-reconstruction-with-single-leg-landing-asymmetries-at-the-time-of-return-to-sport-demonstrate-decreased-knee-function-2-years-later
#15
Matthew P Ithurburn, Mark V Paterno, Kevin R Ford, Timothy E Hewett, Laura C Schmitt
BACKGROUND: Previous work shows that young athletes after anterior cruciate ligament reconstruction (ACLR) demonstrate single-leg (SL) landing movement asymmetries at the time of return to sport (RTS); however, the effect of movement asymmetries on longitudinal knee-related function after ACLR has not been examined. Hypothesis/Purpose: The purpose of this study was to examine the effect of SL drop-landing movement symmetry at the time of RTS on knee-related function 2 years later in young athletes after ACLR...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28644242/effects-of-participation-in-sports-programs-on-walking-ability-and-endurance-over-time-in-children-with-cerebral-palsy
#16
Sandy A Ross, Morgan Yount, Sara Ankarstad, Samantha Bock, Britta Orso, Kimberly Perry, Jennifer Miros, Janice E Brunstrom-Hernandez
OBJECTIVE: Children with cerebral palsy may benefit from maintaining a high level of physical fitness similar to typically developing children especially in terms of long-term physical performance, although in practice this is often difficult. The purpose of this study was to determine the effect of participation in sports programs on walking ability and endurance over time. DESIGN: A retrospective cohort study included participants with cerebral palsy, aged 6 to 20 yrs, who attended a summer sports program from 2004 to 2012...
June 21, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28642676/international-society-of-sports-nutrition-position-stand-protein-and-exercise
#17
REVIEW
Ralf Jäger, Chad M Kerksick, Bill I Campbell, Paul J Cribb, Shawn D Wells, Tim M Skwiat, Martin Purpura, Tim N Ziegenfuss, Arny A Ferrando, Shawn M Arent, Abbie E Smith-Ryan, Jeffrey R Stout, Paul J Arciero, Michael J Ormsbee, Lem W Taylor, Colin D Wilborn, Doug S Kalman, Richard B Kreider, Darryn S Willoughby, Jay R Hoffman, Jamie L Krzykowski, Jose Antonio
The International Society of Sports Nutrition (ISSN) provides an objective and critical review related to the intake of protein for healthy, exercising individuals. Based on the current available literature, the position of the Society is as follows:An acute exercise stimulus, particularly resistance exercise, and protein ingestion both stimulate muscle protein synthesis (MPS) and are synergistic when protein consumption occurs before or after resistance exercise.For building muscle mass and for maintaining muscle mass through a positive muscle protein balance, an overall daily protein intake in the range of 1...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28642223/performing-high-level-sport-is-strongly-associated-with-urinary-incontinence-in-elite-athletes-a-comparative-study-of-372-elite-female-athletes-and-372-controls
#18
Alice Carvalhais, Jorge Renato Natal, Kari Bø
OBJECTIVE: To evaluate the prevalence of urinary incontinence (UI) in female elite athletes compared with controls and to investigate potential risk factors for UI among elite athletes. METHODS: This cross-sectional study included 372 elite athletes (athletes group, AG) and 372 age-matched controls (control group, CG). The median age was low (19 years) and the vast majority were nulliparous. Potential risk factors, including clinical, demographic and sports practice characteristics, were collected by using a questionnaire...
June 22, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28641241/influence-of-shoulder-kinematic-estimate-on-joint-and-muscle-mechanics-predicted-by-musculoskeletal-model
#19
Yoann Blache, Mickael Begon
Little information is available in the existing literature regarding the influence of the scapular kinematic estimate method on musculoskeletal analysis. This study aimed to assess the propagation of errors due to the method used for scapular kinematics reconstruction in the workflow of musculoskeletal modeling (joint kinematics, joint torques, muscle force and joint reaction force) in shoulder and upper-limb movements. Two participants performed functional (arm elevation and rotation), daily life (eating and reaching pants pockets) and sports movements (a simulated throwing maneuver)...
June 15, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28641022/a-randomized-single-dose-parallel-study-on-enhancement-of-nitric-oxide-in-serum-and-saliva-with-the-use-of-natural-sports-supplement-in-healthy-adults
#20
Joby Jacob, Sreeraj Gopi, Chandradhara Divya
Sports supplements that stimulate the production of nitric oxide (NO) are widely promoted agents in the sports nutrition domain, and nitric oxide plays an important role to enhance the cardiovascular and physical fitness of the sports participants. The purpose of the study is to investigate whether oral intake of a sports nutritional supplement (Fitnox) is able to increase nitrate (NO3(-)) and nitrite (NO2(-)) levels in blood serum and saliva of healthy adults. Fitnox is a unique blend of Kaempferia parviflora methoxy flavones, pomegranate peel polyphenols, and Moringa oleifera leaf saponins...
June 22, 2017: Journal of Dietary Supplements
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